eucalyptus upgrades

in addition to everything else, eucalyptus has been working with boto on building a new set of commandline tools that is agnostic of the underlying cloud controller, whether that is amazon's ec2 or their own offering.  the result of this effort is that with release 1.5.2, euca2ools is now available.  underneath, euca2ools uses the python based boto, but is meant (at least initially) as a seamless replacement of the commandline tools provided by amazon.  the eucalyptus public cloud has also been upgraded to 1.5.2.  rock on!